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公开(公告)号:US5100859A
公开(公告)日:1992-03-31
申请号:US643604
申请日:1991-01-22
IPC分类号: B01J21/12 , B01J21/04 , B01J21/06 , B01J23/02 , B01J23/50 , B01J23/68 , B01J33/00 , B01J37/04 , C07D301/10
CPC分类号: B01J23/68 , B01J23/02 , B01J23/688 , C07D301/10 , B01J21/066 , Y02P20/52
摘要: The invention relates to catalyst carries for use in conjunction with silver, alkali metal promoters, rhenium promoters and optionally rhenium co-promoters selected from sulfur, molybdenum, tungsten, chromium and mixtures thereof. The carriers consisting of at least 85 and preferably 95 percent by weight of alpha alumina, from about 0.01 to about 6 percent by weight of an alkaline earth metal silicate and from about zero to about 10 percent by weight (measured as the dioxide of added zirconium in the form of an oxide.
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公开(公告)号:US5266548A
公开(公告)日:1993-11-30
申请号:US937257
申请日:1992-08-31
IPC分类号: B01D53/86 , B01D53/94 , B01J21/04 , B01J21/06 , B01J21/16 , B01J23/10 , B01J23/20 , B01J23/22 , B01J23/26 , B01J23/28 , B01J23/34 , B01J35/10 , B01J32/00
CPC分类号: B01D53/945 , B01J21/04 , B01J35/0026 , B01J35/10 , B01J35/1009 , B01J35/1066 , B01J35/1076 , B01J35/109 , Y02T10/22
摘要: Porous carrier materials comprising at least 90% by weight of at least 95% pure alpha alumina are very effective as supports for catalysts treating engine exhausts and are significantly better able to withstand extreme conditions than conventional supports.
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公开(公告)号:US4954138A
公开(公告)日:1990-09-04
申请号:US268097
申请日:1988-11-07
CPC分类号: B24D3/04 , D06B11/0096 , Y10S106/02
摘要: A product and method for conditioning fabrics, especially denim, is disclosed. The product is an artificial stone made up of an inorganic filler, inorganic abrasive particles and an inorganic bond for the filler and abrasive. The method is the use of the stone to condition fabrics.
摘要翻译: 公开了一种用于调理织物,特别是牛仔布的产品和方法。 该产品是由无机填料,无机磨料颗粒和填料和磨料的无机粘结剂构成的人造石。 该方法是使用石材来调理织物。
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公开(公告)号:US5178785A
公开(公告)日:1993-01-12
申请号:US758060
申请日:1991-09-12
摘要: A new heat sink composition having relatively high volumetric heat capacity and relatively high density have been prepared. The compositions comprise a set of formulas including: a) 50-95% oxide of iron and 50-5% of a mixture of clay, an organic binder or an inorganic binder, where said mixture can contain any portion of clay, organic binder or inorganic binder in any proportions provided the mixture adheres to the 50-5% compositional range; b) 15-95% oxide of iron and 85-5% of clay; c) 15-85% oxide of iron, 10-2% of a transition metal oxide other than iron and 75-13% inorganic binder; and d) 50-80% oxide of iron, 15-5% of talc and 35-15% clay. The compositions show good dried and fired properties and can even be loaded and fired in-situ because they possess good dried crush strength.
摘要翻译: 已经制备了具有相对高的体积热容量和相对高密度的新的散热器组合物。 组合物包含一组配方,其包括:a)50-95%的铁氧化物和50-5%的粘土,有机粘合剂或无机粘合剂的混合物,其中所述混合物可以含有任何部分的粘土,有机粘合剂或 任何比例的无机粘合剂,只要混合物粘附在50-5%的组成范围内; b)铁的15-95%氧化物和85-5%的粘土; c)15-85%的铁氧化物,10-2%的铁以外的过渡金属氧化物和75-13%的无机粘合剂; 和d)铁的50-80%氧化物,15-5%的滑石和35-15%的粘土。 组合物显示出良好的干燥和焙烧性能,并且甚至可以原位加载和烧制,因为它们具有良好的干燥压碎强度。
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